Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"3D printers"”.
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Algorithmic Approaches to Interfacing Different Materials Using Inkjet Multi-Material 3D Printers
As the field of multi-material additive manufacturing (AM) advances, fabricated designs have become increasingly complex. As resolution improves, new algorithmic methods are needed to keep up with the exponentially increasing computational demands. To solve this problem, the shader-like "fablet" …
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Formulation of uv curable resins utilized in vat photo polymerization for the additive manufacturing of gun propulsion charge in 3d printers
Formulating resins for Additive Manufacturing (AM), utilizing UV laser stereolithography, is a new technique that makes it possible for the fabrication of complex geometries with high dimensional resolution. This layer by layer photopolymerization approach spans various industrial sectors from …
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Fab trees for designing complex 3D printable materials
With more 3D printable materials being invented, 3D printers nowadays could replicate not only geometries, but also appearance and physical properties. On the software side, the tight coupling between geometry and material specification, and the lack of tools in specifying materials volumetrically, …
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Dynamic response of 3D printed beams with damping layers
3D printers are a relatively new technology and they could be used in the future to 3D print structural components in buildings or bridges. The main advantages of using 3D printing would be the optimization of the structures. Effectively, with 3D printers, it is possible to generate polymers with …
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Exploring the evolution of additive manufacturing industry : a study of stakeholder requirements and architectural analysis of Desktop three-dimensional printing Segment
… pillar of the digital manufacturing is 3D printing, a 30-year technology traditionally found in industrial settings but have since evolved rapidly and extended beyond those frontiers. In recent years, desktop 3D printers have carved out a market for itself and have become the fastest …
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Evaluating the impact of adopting 3d printing services on the retailers
… for the retailers is whether they should provide 3D printing services in their brick-and-mortar store in addition to the traditional off-the-shelf product? If so, what should be the retailers pricing scheme to achieve a higher profit? What should be the optimal inventory level of off-the-shelf …
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The future of desktop 3D printing : what stands in the way and how the technology will advance
… excitement surrounding the potential of desktop 3D printing. Some predict that household ownership for some users is only a few years away, while others go as far as to assert desktop printers will follow a comparable trajectory to personal computers. This thesis challenges the validity of these …
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Design of electronics for a high-resolution, multi-material, and modular 3D printer
… a high-resolution, multi-material, and modular 3D printer were designed and implemented. The driver for a piezoelectric inkjet print head can fire its nozzles with one of three droplet sizes ranging from 6 pL to 26 pL at approximately 10 kHz. The system developed for curing photopolymer …
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High-Resolution Additive Manufacturing Error Prediction and Compensation Through 3D CNN Leveraging Semantic Segmentation
… changes in geometry by training on segments of a 3D object rather than the whole object. Next, process parameters from fused-filament fabrication (FFF) processes were added to the ML models to add resilience process parameter variance. Lastly, the ML models were deployed in a federated environment …
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Design and fabrication of a modular multi-material 3D printer
This thesis presents 3DP-0, a modular, multi-material 3D printer. Currently, 3D printers available on the market are typically expensive and difficult to develop. In addition, the simultaneous use of multiple materials in 3D printing has not been extensively explored. The printer presented in this …
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How To Pack Anything
3D printers can make anything, from household tools to rocket engines, so long as the models can be packed into a given enclosure. The denser the packing, the more efficient the print is. Unfortunately, modern packing research has struggled with complex shapes and even proprietary packing software …
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Characterization of tensile and hardness properties and microstructure of 3D printed bronze metal clay
… uses. Currently, there are no economical 3D printers that can print Bronze powders. A recent product, Bronze Metal Clay (BMC) has arrived. Additionally, commercial metal 3D printers require laser or electron beam sources, which are expensive and not easily accessible. The objective of this …
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Assessing Non-Planar Slicing and Carbon Fibre Filament Additives as Steps Towards 3D-Printed Drone Propellers
… but with the advent of capable end-user 3D printers, may be able to manufacture them. This research assesses how non-planar model slicing and short-chopped carbon-fibre additives affect the mechanical performance of printed parts and viability of printed propellers. Creep testing …
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Fabrication of a Low-Cost, Motorized, 3D-Printed Mechanical Testing Device Compatible with Confocal Microscopy
… In this thesis, we report the fabrication of a 3D-printed mechanical testing device with motorized translation controllable over a Bluetooth connection. Furthermore, with a form factor constrained to a 96-well plate, the device is able to fit into most conventional microscopy stages for …
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Eliminating Plastic Waste by Transitioning Machine Shop to Produce Its Own 3D Printer Filament
As 3D printing becomes more popular, the issue of excess plastic grows. In response, companies and hobbyists have developed recycling systems to turn waste material back into 3D printing filament. In the Laboratory for Manufacturing and Productivity (LMP), students use injection-molding and …
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Novel Advances in Bioprinting Based on the Mechanical Design and Optimization of Open-source Systems
Three-dimensional (3D) bioprinting promises to be a practical solution for solving the increasing demand for organs and tissues. Several 3D bioprinters with different specifications are commercially available, but the impact on the field of tissue engineering (TE) is still limited, mainly due to …
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The ethical issues of additive manufacturing
Additive manufacturing (3D printing) has brought industrial manufacturing capabilities to the desktop, allowing the seamless transition from consumer-to-manufacturer-to-retailer and enabling anyone to use the technology outside of traditionally regulated spaces. This creates new challenges for …
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Ink-gel simultaneous embedded 3D printing
3D printing has improved by leaps and bounds. The gains include both the hardware and software. With 3D printers increasingly becoming staples of many a laboratory and engineering workshop, naturally comes the application of 3D printing to ever more significant issues. Some of these new …
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Modeling Robotic Wire Arc Additive Manufacturing Process Using Machine Learning
… passes of the torch, much like conventional 3D printers. This proposal plans to improve the process by using a weaving toolpath. For characterization, a Cognex DS 1300R laser scanner will generate a 3D point cloud of the welds produced by the WAAM process with a resolution in the micrometer …
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Development of self-folding origami sensors through the use of resistance, capacitance, and inductance
… of "printable" robots through the use of 3D printers or foldable robotic components. This thesis sought to address the need for printable sensors through the use of self-folding, conductive origami. Using Miyashita's technique for self-folding origami through global heat application, a …
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